This fine little effect requires a simple sleight-of-hand move to master, but the sleight is easy to do. Two glasses and two small balls are displayed to the audience. Each ball is a different color. Each ball is then wrapped into a handkerchief that matches its color. Each hank and ball is dropped into a glass. When the hanks are pulled out of the glasses, the balls are left behind but they have changed places! Simple and visually strong, comes complete with balls and hanks. Use your own glasses.